Syrian Army troops warded off a second large-scale attack of ISIS (ISIL, IS, Daesh) on their defense lines in Deir Ezzur's neighborhoods, inflicting major casualties on the militants.

The ISIS terrorists, whose first massive attack on army positions on al-Roshdiyeh neighborhood had been repelled on Thursday night, managed to carry out a second large-scale offensive to prevail over army positions in the key neighborhood but failed again and retreated from the battlefield after leaving behind over 20 dead members and two destroyed vehicles.

ISIS used tens of forces in its attack but the army soldiers could fend off the attack.

In relevant developments in the province on Wednesday, the army soldiers engaged in several-hour-long fierce clashes with ISIS terrorists who had attacked heavily on their positions in al-Roshdiyeh neighborhoods, killing a large number of the militants.

The ISIS pulled the remaining pockets of its militants out of battlefield after they failed to prevail over the government troops' positions.

The Syrian Air Force also pounded ISIL's positions in Nursery and Petrochemical Faculties in the neighborhoods of al-Huweiqa and al-Kanamat and in surrounding areas of Deir Ezzur airbase South of the city, FNA reported.

The army's artillery units also shelled ISIL's positions near the airbase, killing a number of militants.